20653758

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{5387}}^1$

素因数の和:5469

約数の個数: 32

約数和(自身を含む): 46552320

約数和(自身を除く): 25898562

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 5387, 10774, 16161, 32322, 48483, 96966, 145449, 290898, 382477, 764954, 1147431, 2294862, 3442293, 6884586, 10326879, 20653758]

約数ペア:

[(1, 20653758), (2, 10326879), (3, 6884586), (6, 3442293), (9, 2294862), (18, 1147431), (27, 764954), (54, 382477), (71, 290898), (142, 145449), (213, 96966), (426, 48483), (639, 32322), (1278, 16161), (1917, 10774), (3834, 5387)]